// Copyright 2025 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package main

import (
	"testing"

	"github.com/google/go-cmp/cmp"
)

func TestFunctionToString(t *testing.T) {
	simple := function{}
	got, err := simple.toString("foo")
	if err != nil {
		t.Fatal(err)
	}
	want := "fn foo()"
	if diff := cmp.Diff(want, got); diff != "" {
		t.Errorf("bad string for function (-want, +got)\n:%s", diff)
	}

	async := function{
		Header: functionHeader{
			IsAsync: true,
		},
	}
	got, err = async.toString("foo")
	if err != nil {
		t.Fatal(err)
	}
	want = "async fn foo()"
	if diff := cmp.Diff(want, got); diff != "" {
		t.Errorf("bad string for function (-want, +got)\n:%s", diff)
	}
}
